US8931302B2 - Heat exchange unit for self-cooling containers - Google Patents

Heat exchange unit for self-cooling containers Download PDF

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Publication number
US8931302B2
US8931302B2 US13/642,461 US201113642461A US8931302B2 US 8931302 B2 US8931302 B2 US 8931302B2 US 201113642461 A US201113642461 A US 201113642461A US 8931302 B2 US8931302 B2 US 8931302B2
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United States
Prior art keywords
heat exchange
exchange unit
shell
metal
metal shell
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Expired - Fee Related, expires
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US13/642,461
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English (en)
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US20130213080A1 (en
Inventor
David Cull
Mark Sillince
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Joseph Company International Inc
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Joseph Company International Inc
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Priority to US13/642,461 priority Critical patent/US8931302B2/en
Assigned to JOSEPH COMPANY INTERNATIONAL, INC. reassignment JOSEPH COMPANY INTERNATIONAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SILLINCE, MARK, CULL, DAVID
Publication of US20130213080A1 publication Critical patent/US20130213080A1/en
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D7/00—Devices using evaporation effects without recovery of the vapour
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/805—Cans

Definitions

  • This invention relates generally to containers housing a pressurized medium such as self-chilling or self-heating food and beverage containers and more particularly to an improved heat exchange unit which is housed within a self-cooling container for cooling a product such as a food or beverage wherein the heat exchange unit is secured within the container and houses the pressurized medium.
  • Self-cooling devices utilized in the prior art exemplified by the above-identified patents are generally unsatisfactory. Some of the difficulties which have been encountered are that the devices generally rely on toxic or environmentally unfriendly chemicals, require very bulky pneumatic circuits and cannot economically be used in small containers such as beverage cans or food cans, are rather complex, and thus are expensive to manufacture and maintain and are ineffective. In addition, it has been found that if the pressure within the heat exchange unit increases to a predetermined amount, the portion of the heat exchange unit which carries the dispensing valve may be stressed to such a degree that it moves thereby causing the heat exchange unit to rupture and become unusable, or in the worst case, results in a total failure of the container.
  • FIGS. 1 , 2 and 3 there are illustrated three different embodiments of prior art containers within which there is disposed a heat exchange unit (HEU) for cooling a beverage contained within an outer container.
  • HEU heat exchange unit
  • the container ( 10 ) includes a heat exchange unit 924 ) disposed therein and which is surrounded by a beverage ( 26 ) to be cooled.
  • the container includes a lid 918 ) which includes a conventional pull tab ( 12 ), secured to a panel ( 14 ) such that when the pull tab ( 12 ) is lifted, the panel 914 ) is bent into the container ( 10 ).
  • the operation of tab ( 12 ) extending the tear panel ( 14 ) into the container ( 10 ) is well known in the art.
  • the lid ( 18 ) conventionally includes an angular ridge ( 20 ) which is clamped to the top end ( 22 ) of the container ( 10 ).
  • the HEU ( 24 ) houses a cooling medium which under various circumstances can increase in pressure and if the pressure becomes high enough the upper portion 928 ) of the HEU ( 24 ) which includes the crimp ( 30 ) that secures the valve ( 32 ) to the HEU may expand or rupture, thus creating an ineffective apparatus.
  • FIG. 2 is another prior art container ( 40 ) having an HEU ( 50 ) disposed internally thereof to be surrounded by a beverage ( 42 ) which is to be cooled.
  • the top of the beverage container ( 44 ) as shown at ( 46 ) has the conventional pull tab ( 48 ) as above described.
  • the HEU ( 50 ) includes a dispensing valve ( 52 ) secured to the cap ( 54 ) which is fitted over the top of the HEU ( 50 ) and is secured thereto.
  • the valve ( 52 ) is carried by the skirt or flange ( 54 ) which is held in place by being crimped over the top ( 56 ) of the cap ( 54 ).
  • the protective cover ( 58 ) is placed over the activating stem of the valve ( 52 ) to protect it from inadvertent activation.
  • the HEU ( 50 ) and the valve ( 52 ) are secured to the bottom ( 62 ) of the can ( 44 ). Again if over pressure within, the pressurized medium contained internally of the HEU ( 50 ) occurs, rupture between the cap ( 54 ) and the body of the HEU ( 50 ) will result rendering the device unusable.
  • FIG. 3 there is shown still another embodiment of a prior art beverage cooling container ( 112 ) which includes an HEU ( 120 ) having internally thereof an adsorbent ( 138 ) which in the preferred embodiment is an activated carbon which receives carbon dioxide under pressure which is inserted through the valve mechanism ( 124 ) to enter into the internal part of the HEU through the opening ( 128 ) to be adsorbed by the carbon.
  • the valve ( 124 ) is held in place by flange ( 122 ) which is crimped to the necked in top portion ( 132 ) of the HEU ( 120 ).
  • a protective cover 150 is placed over the activating stem ( 130 ) of the valve ( 124 ) to protect it from inadvertent activation.
  • the carbon dioxide is desorbed from the carbon to cool the beverage ( 114 ).
  • the top ( 116 ) of the container ( 112 ) includes the typical pull tab (not shown) as above described. Again if the pressurized carbon dioxide contained internally of the HEU ( 120 ) over pressurizes, the necked in portion ( 134 ) of the HEU ( 120 ) will move outwardly causing a release of the valve rendering the device unusable.
  • An improved HEU for use within a self-cooling container comprising a metal shell having a closed bottom and an open top, a compacted adsorbent material disposed internally of the shell, a metal top section having a solid curl at an open upper end thereof fitted over the open end of the shell and secured to the outer surface of the shell by a metal to metal adhesive, bonding the top section to the shell.
  • FIGS. 1 , 2 and 3 illustrate prior art
  • FIG. 4 is a perspective view of a completed HEU assembly constructed in accordance with the principles of the present invention.
  • FIG. 5 is a perspective cross-sectional view of the HEU of FIG. 4 , taken about the lines 5 - 5 thereof;
  • FIG. 6 is a perspective view in cross-section of the top section of the HEU as shown in FIG. 4 ;
  • FIG. 7 is a partial cross-sectional view in perspective illustrating the attachment of the top section of the HEU to the HEU shell.
  • HEU HEU
  • a metal shell 202
  • a metal top section 204
  • the upper portion of the top section ( 204 ) of the HEU terminates in an opening ( 206 ) defined by a solid curl ( 208 ).
  • the solid curl ( 208 ) receives a valve mechanism of the type generally above described in the prior art which is carried by a typical mounting member having a pedestal within which there is sealingly secured the appropriate dispensing valve.
  • the valve includes the typical stem extending through the central opening in the pedestal and on a safety device that will open under excess pressure.
  • the mounting member is inserted into the opening ( 206 ) at the top section and the outer periphery thereof and is affixed to the curl ( 208 ) by way of a crimping operation as is well known to those skilled in the art.
  • the crimping operation not only secures the valve assembly to the HEU ( 200 ) but in addition closes and seals the open upper end of the HEU and the can to which it is affixed typically through the use of a gasket (not shown).
  • a gasket not shown.
  • the heat exchange unit ( 200 ) may contain a refrigerant medium which is any known to the art and which functions to conduct the heat contained within the beverage out of the beverage and into the atmosphere as the refrigerant escapes once the heat exchange unit has been activated.
  • a refrigerant medium for the present invention is an adsorbent/desorbent mechanism preferably utilizing materials such as zeolites, cation exchange zeolites, silica gel, activated carbons and carbon molecular sieves and the like as the adsorbent. These adsorbents are capable of adsorbing under pressure a significant quantity of gas for later release.
  • the gas adsorbed therein can be any suitable gas that is friendly to the atmosphere.
  • the gas in accordance with the present invention comprises carbon dioxide.
  • the carbon dioxide adsorbed in the adsorbent, preferably activated carbon particles, when released to atmospheric pressure will experience a significant drop in temperature thereby chilling the contents of the beverage which comes into contact with the outer surface of the heat exchange unit ( 200 ).
  • a more detailed explanation of the carbon-carbon dioxide adsorbent refrigeration system is contained in U.S. Pat. No. 7,185,511 and incorporated herein by reference. Therefore a further and more detailed explanation of the carbon-carbon dioxide refrigerant system will not be provided herein.
  • the metal shell ( 202 ) has a closed bottom ( 203 ) and an open top ( 205 ) which terminates in a rim ( 207 ) and is preferably formed from impact extruded aluminum.
  • a carbon member or plug ( 210 ) which is a highly compressed body preferably of activated carbon particles and a graphite material with a binder is preformed and is inserted and received internally of the HEU shell and extends substantially upwardly toward and adjacent the upper perimeter ( 212 ) of the HEU shell.
  • the open ended shell and the preformed plug ( 210 ) of carbon material the maximum amount of adsorbent material can be contained within the HEU.
  • a pressurized medium such as carbon dioxide is inserted through the valve into the interior of the HEU ( 200 ) and is adsorbed by the compressed carbon particles contained within the carbon plug ( 210 ).
  • the carbon dioxide gas is desorbed from the carbon cooling the food or beverage in the container in which the HEU ( 200 ) is housed.
  • the top section ( 204 ) of the HEU ( 200 ) is shaped so that a skirt ( 216 ) thereof fits over the outer surface ( 218 ) of the HEU shell ( 202 ).
  • the skirt ( 216 ) of the top section ( 204 ) includes an inner surface ( 214 ) which may define a plurality of grooves such as shown at ( 220 ), ( 222 ) and ( 224 ).
  • the inner surface ( 214 ) of the top section ( 204 ) receives an appropriate metal to metal adhesive bonding material to permanently secure the top section ( 204 ) of the HEU ( 200 ) to the HEU shell ( 202 ).
  • top section ( 204 ) inner surface may be smooth or may define one or more grooves as desired.
  • Various food grade adhesives may be utilized so long as they permanently bond the top ( 214 ) to the shell ( 202 ) of the HEU ( 200 ) and form a secure seal to retain the pressurized carbon dioxide within the HEU.
  • adhesives which may be used are cross-linking adhesives such as epoxies, acrylics and the like.
  • the top section ( 204 ) may be machined from a blank of appropriate metal such as stainless steel.
  • the top section ( 204 ) may be die cast from zinc or aluminum. Whether the top section ( 204 ) is machined or die cast, or formed by other methods such as eyelet stamping or forming or spinning, it has the required strength to withstand the pressures generated by the pressurized carbon dioxide and even under high temperature conditions will not fail.
  • the top section ( 204 ) is formed to provide a shoulder or stop ( 226 ) which is disposed on the internal surface ( 214 ) of the top section ( 204 ) and above the grooves ( 220 ), ( 222 ) and ( 224 ) if they are provided.
  • the shoulder ( 226 ) is disposed to mate with the rim ( 207 ) of the shell ( 202 ) of the HEU ( 200 ).
  • the top section ( 204 ) has the appropriate adhesive applied internally thereof and is then slipped in place over the outer surface ( 218 ) of the shell ( 202 ) until the rim ( 207 ) thereof engages the shoulder ( 226 ) whereupon the top section ( 204 ) is now in place.
  • the top section ( 204 ) is then permanently positioned and held in place and bonded to the shell ( 202 ) so that it cannot be removed.
  • a seal such as a weld ( 228 ) will be formed between the bottom edge ( 230 ) of the top section ( 204 ) and the outer surface ( 218 ) of the shell ( 202 ).
  • This seal or weld ( 228 ) disposes of an abrupt change in the contour of the container and precludes the possibility of contaminants becoming trapped thereby.
  • the open upper portion ( 208 ) of the top section ( 204 ) is formed to provide a solid curl ( 232 ) which receives the crimped flange of the outer periphery of the mounting member of the valve as above described.
  • the top section ( 204 ) of the HEU ( 202 ) is formed, preferably from die cast zinc or aluminum it will be sufficiently strong so as not to crush or move under the pressure which may be generated by the cooling medium such as the carbon dioxide gas, that is adsorbed by the carbon plug ( 210 ).
  • the maximum amount of highly compressed carbon particles can be received within the HEU shell to maximize the amount of carbon dioxide which can be adsorbed by the HEU.
  • the adsorbed carbon dioxide when the valve through which the carbon dioxide is inserted into the carbon plug ( 210 ) is activated, the adsorbed carbon dioxide then desorbs from the carbon particles and exits the HEU and in doing so removes heat from the food or beverage surrounding the external surface ( 218 ) of the HEU thereby cooling the food or beverage to the desired amount to make it more palatable.
  • a protective food grade coating may be applied to the entire external surface of the HEU to preclude any contamination of the food or beverage surrounding the HEU or the possible alteration of the taste thereof.
  • the coating may be a food grade epoxy lacquer having a thickness of between 4 and 10 microns.
  • HEU which is constructed of materials having sufficient strength and configured to be effective and safe even under relatively high pressure situations.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Packages (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Closures For Containers (AREA)
US13/642,461 2010-04-23 2011-04-15 Heat exchange unit for self-cooling containers Expired - Fee Related US8931302B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/642,461 US8931302B2 (en) 2010-04-23 2011-04-15 Heat exchange unit for self-cooling containers

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US32751610P 2010-04-23 2010-04-23
PCT/US2011/032715 WO2011133428A1 (en) 2010-04-23 2011-04-15 Heat exchange unit for self-cooling containers
US13/642,461 US8931302B2 (en) 2010-04-23 2011-04-15 Heat exchange unit for self-cooling containers

Publications (2)

Publication Number Publication Date
US20130213080A1 US20130213080A1 (en) 2013-08-22
US8931302B2 true US8931302B2 (en) 2015-01-13

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ID=44834463

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US13/642,461 Expired - Fee Related US8931302B2 (en) 2010-04-23 2011-04-15 Heat exchange unit for self-cooling containers

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US (1) US8931302B2 (de)
EP (1) EP2561290A4 (de)
JP (1) JP5846612B2 (de)
CN (1) CN102947654B (de)
AU (1) AU2011243034B2 (de)
BR (1) BR112012027009A2 (de)
MY (1) MY163047A (de)
PH (1) PH12012502075A1 (de)
SG (1) SG184914A1 (de)
WO (1) WO2011133428A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11267642B2 (en) * 2019-03-08 2022-03-08 Lara Vu Portable thermal insulated apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2882357A1 (en) * 2012-10-15 2014-04-24 Joseph Company International, Inc. Heat exchange unit for self-cooling beverage container
RU2649623C2 (ru) * 2013-01-29 2018-04-04 Джозеф Компани Интернэшнл, Инк. Устройство и способ заполнения углекислым газом для теплообменного устройства
MX386880B (es) * 2015-03-20 2025-03-19 Joseph Company Int Inc Recipiente de alimentos o bebidas auto-refrigerante que tiene una unidad de intercambio de calor que utiliza dioxido de carbono liquido y que tiene una valvula de funcion dual
EP3344572A4 (de) * 2015-09-03 2019-05-22 Joseph Company International, Inc. Getränkeabfüllmaschine zum füllen von dosen mit einer innen daran befestigten wärmetauscheinheit mit einem flüssigen getränk

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US6581401B1 (en) * 2002-03-01 2003-06-24 Michael M. Anthony Self-cooling container with phase locked refrigerant and process of manufacturing the same
US6786062B1 (en) * 2001-11-20 2004-09-07 Harry R. Greenberg Beverage cooling device
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US3605421A (en) * 1970-02-16 1971-09-20 Earnest H Patrick Cooler
US4417667A (en) 1980-09-26 1983-11-29 The Continental Group, Inc. Lightweight container
US5394703A (en) * 1993-05-28 1995-03-07 Microcold Technologies, Inc. Self-chilling food or beverage container
US5427268A (en) 1993-06-16 1995-06-27 Battelle Memorial Institute Ceramic pressure housing with metal endcaps
US5606866A (en) * 1994-11-08 1997-03-04 The Joseph Company Heat exchange unit for self-cooling beverage containers
US5655384A (en) * 1995-05-24 1997-08-12 The Joseph Company Self-cooling container including liner member
US5609038A (en) * 1995-08-22 1997-03-11 Halimi; Edward M. Self-chilling beverage container and parts therefor
US20060201187A1 (en) * 1997-09-19 2006-09-14 Smolko Daniel D Cooling jacket for containers
US6105384A (en) 1999-01-19 2000-08-22 Chill-Can International, Inc. Self-cooling or self-heating food or beverage container having heat exchange unit with external protective coating
US6487766B2 (en) 1999-02-10 2002-12-03 Chill-Can International, Inc. Manufacturing process for container including a heat exchange unit as an integral part thereof
US6125649A (en) 1999-02-10 2000-10-03 Chill-Can International, Inc. Heat exchanger unit with conductive discs
US6952934B2 (en) * 2000-04-22 2005-10-11 Jung Min Lee Self-cooling liquid container
US6786062B1 (en) * 2001-11-20 2004-09-07 Harry R. Greenberg Beverage cooling device
US6581401B1 (en) * 2002-03-01 2003-06-24 Michael M. Anthony Self-cooling container with phase locked refrigerant and process of manufacturing the same
US20070175233A1 (en) * 2006-01-27 2007-08-02 St James David M Self-chilling beverage container and method
US20090094994A1 (en) * 2007-10-16 2009-04-16 Mark Alan Willcoxen Container incorporating integral cooling element

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11267642B2 (en) * 2019-03-08 2022-03-08 Lara Vu Portable thermal insulated apparatus

Also Published As

Publication number Publication date
EP2561290A1 (de) 2013-02-27
WO2011133428A1 (en) 2011-10-27
JP2013527906A (ja) 2013-07-04
EP2561290A4 (de) 2016-06-22
MY163047A (en) 2017-07-31
CN102947654B (zh) 2016-06-29
CN102947654A (zh) 2013-02-27
RU2012144241A (ru) 2014-05-27
PH12012502075A1 (en) 2022-03-21
BR112012027009A2 (pt) 2016-09-13
SG184914A1 (en) 2012-11-29
US20130213080A1 (en) 2013-08-22
AU2011243034B2 (en) 2014-11-06
JP5846612B2 (ja) 2016-01-20

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